2. Respiratory system Flashcards
What is the primary function of the respiratory system?
To facilitate the exchange of oxygen and carbon dioxide.
True or False: The diaphragm plays a crucial role in breathing.
True
Fill in the blank: The main organ of the respiratory system is the __________.
lungs
What structure connects the throat to the lungs?
Trachea
Which part of the respiratory system is responsible for gas exchange?
Alveoli
What is the process of breathing in called?
Inhalation
What is the process of breathing out called?
Exhalation
Multiple Choice: Which of the following is NOT a part of the respiratory system? A) Bronchi B) Esophagus C) Lungs
B) Esophagus
How does the respiratory system help with temperature regulation?
By warming and humidifying the air we breathe.
True or False: The respiratory rate increases during exercise.
True
What is tidal volume?
The amount of air inhaled or exhaled in a normal breath.
Fill in the blank: The __________ are small air sacs in the lungs where gas exchange occurs.
alveoli
What is the role of the nasal cavity in the respiratory system?
To filter, warm, and moisten the air.
Multiple Choice: Which gas is primarily expelled from the body during exhalation? A) Oxygen B) Nitrogen C) Carbon Dioxide
C) Carbon Dioxide
What is the function of cilia in the respiratory system?
To trap and move particles out of the airways.